Historical research is embodied in the historical method.
Examples of questions asked in basic research:
Does string theory provide physics with a grand unification theory?
Which aspects of genomes explain organismal complexity?
Conclusion, iteration if necessary
when we sign to partake into a historical method, what shall we do?
Exploratory research, which structures and identifies new problems
Constructive research, which develops solutions to a problem
Empirical research, which tests the feasibility of a solution using empirical evidence
The research room at the New York Public Library, an example of secondary research in progress.